From f5e406327200672f95d61c4ca4ffc9de03e6a5a7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@ruby-lang.org>
Date: Fri, 1 Nov 2019 15:56:02 +0900
Subject: ruby_mimmalloc can return NULL

malloc can fail.  Should treat such situations.
---
 cont.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'cont.c')

diff --git a/cont.c b/cont.c
index bdd775a8cb..59e97474fc 100644
--- a/cont.c
+++ b/cont.c
@@ -1865,6 +1865,9 @@ void
 rb_threadptr_root_fiber_setup(rb_thread_t *th)
 {
     rb_fiber_t *fiber = ruby_mimmalloc(sizeof(rb_fiber_t));
+    if (!fiber) {
+        rb_bug("%s", strerror(errno)); /* ... is it possible to call rb_bug here? */
+    }
     MEMZERO(fiber, rb_fiber_t, 1);
     fiber->cont.type = FIBER_CONTEXT;
     fiber->cont.saved_ec.fiber_ptr = fiber;
-- 
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